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| Combustion Synthesis of h-BN-SiC Ceramic Composites | |
| 引用本文： | LI Hong-bo*,ZHENG Yong-ting,ZHOU Li-juan,HAN Jie-cai Center for Composite Materials,Harbin Institute of Technology,Harbin 150001,China. Combustion Synthesis of h-BN-SiC Ceramic Composites[J]. 中国航空学报, 2006, 19(Z1) |
| 作者姓名： | LI Hong-bo* ZHENG Yong-ting ZHOU Li-juan HAN Jie-cai Center for Composite Materials Harbin Institute of Technology Harbin 150001 China |
| 作者单位： | LI Hong-bo*，ZHENG Yong-ting，ZHOU Li-juan，HAN Jie-cai Center for Composite Materials，Harbin Institute of Technology，Harbin 150001，China |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| 摘 要： | The feasibility was demonstrated to fabricate h-BN-SiC ceramics through combustion synthesis of the mixture of boron carbide and silicon powders under 100 MPa nitrogen pressure. The mass fraction of BN and SiC in the combustion products were found to be 72 % and 28 % respectively. The thermodynamics of the synthesis reaction and the adiabatic combustion temperature were calculated on the theoretical ground. The bending strengths of the ceramics were measured to be 65.2 MPa at room temperature and 55 MPa at 1350 ℃. The phase composition and microstructure of the combustion products were identified by X-ray diffraction (XRD) and scanning electron microscopy (SEM). |
Combustion Synthesis of h-BN-SiC Ceramic Composites |
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| LI Hong-bo,ZHENG Yong-ting,ZHOU Li-juan,HAN Jie-cai. Combustion Synthesis of h-BN-SiC Ceramic Composites[J]. Chinese Journal of Aeronautics, 2006, 19(Z1) | |
| Authors: | LI Hong-bo ZHENG Yong-ting ZHOU Li-juan HAN Jie-cai |
| Abstract: | The feasibility was demonstrated to fabricate h-BN-SiC ceramics through combustion synthesis of the mixture of boron carbide and silicon powders under 100 MPa nitrogen pressure. The mass fraction of BN and SiC in the combustion products were found to be 72 % and 28 % respectively. The thermodynamics of the synthesis reaction and the adiabatic combustion temperature were calculated on the theoretical ground. The bending strengths of the ceramics were measured to be 65.2 MPa at room temperature and 55 MPa at 1350 ℃. The phase composition and microstructure of the combustion products were identified by X-ray diffraction (XRD) and scanning electron microscopy (SEM). |
| Keywords: | combustion synthesis high-temperature ceramic h-BN-SiC |
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